“You’re probably either more attractive or less attractive than you think.” As opposed to what? Being EXACTLY, to ten decimal places, as attractive as you think? If you measure precisely enough, you could say this about anything. You’re either taller or shorter than you think. You think you’re 5 foot 10 inches? No, no, you’re really 5 foot 9 1/2 inches. Etc.
“You’re probably either more attractive or less attractive than you think.” As opposed to what? Being EXACTLY, to ten decimal places, as attractive as you think? If you measure precisely enough, you could say this about anything. You’re either taller or shorter than you think. You think you’re 5 foot 10 inches? No, no, you’re really 5 foot 9 1/2 inches. Etc.